Bad flyback, cracked blue crt (very common), bad hv divider, etc.
Just use standard tv set high voltage circuit troubleshooting techniques.
David

wrote in message
...
Hi. Magnavox PTV705, blows Q802 HOT instantly. Have checked, good H drive
to
base from proc chip, with HOT removed and HV cable detached to avoid crt
problems. Anyway, done up with HOT removed and HV isolated, I can fire up
for 1 second. During this time I have good base signal to HOT base
connector. If I put in new transistor, makes a not pretty noise, then is
instantly shorted. Have found no obvious bad parts near the area. Any
ideas?

Thanks in advance,

Danny